<!DOCTYPE html>
<title>Reference for default scroll() timeline</title>
<style>
  html {
    min-height: 100%;
    padding-bottom: 100px;
  }

  #box {
    width: 100px;
    height: 100px;
    background-color: green;
  }

  * {
    margin-top: 0px;
    margin-bottom: 0px;
  }
</style>

<div id="box"></div>
